The principle behind Rsnapshot is nothing new: use Rsync and SSH to back up files to another computer. What sets Rsnapshot apart is its simple setup and its rich collection of features.

Modern computers with their multiple Gigabyte hard disks store thousands of files. A lost file can cause a lot of work,and it can also pose a security risk. Fortunately,Linux has some versatile tools for finding those “lost files.”

Everyone knows you can boot Linux from a live CD,but have you thought about putting Linux on a compact and highly portable USB memory stick?

When you’re going wireless,it pays to be careful. Get the right hardware,and make sure your network is as secure as you think it is.

Nearly all motherboards have a power management feature designed to power down the computer and put it into suspend mode. In real life, this feature does not always work. Linux has a software-based workaround for the dysfunctional suspend.

When users think about their workstations at home, they often forget about security. But danger is out there,waiting to pounce on the unsuspecting. Shorewall helps everyday Linux users keep the intruders away.

Netfilter firewalls create highly detailed logfiles that nobody really wants to inspectmanually. Logfile analysis tools like IPtables Log Analyzer,Wallfire Wflogs,and FWlogwatch help administrators keep track of developments and filter for importantmessages.